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Mathematics 9 Online
OpenStudy (anonymous):

Please help (use link)

OpenStudy (angela210793):

wht link?

OpenStudy (anonymous):

OpenStudy (anonymous):

that one

OpenStudy (angela210793):

...sorry I'm not tht good at trigonometry :/

OpenStudy (anonymous):

its either 4(pi) or 6(pi)

OpenStudy (anonymous):

i think it will be f(x)=cosx

OpenStudy (asadkarim7):

the period is 3 pi

OpenStudy (anonymous):

Thats what I thought but it's not an option its either \[4\pi or 6\pi\]

OpenStudy (asadkarim7):

oh

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